in cambodia today, president obama worked the phones calling israel and egypt's leaders. but back here, between the bombs, children were able to get outside and smile while others hoped for quieter times. >> we need peace. we need peace. if they stopped, if sharyn alfonsi stopped, i'm sure they will stop. >> reporter: but of course it's not that simple. both sides say they want peace but blame the other for preventing it. so tonight while many hope for a peace deal, the missiles keep flying. >> thanks. let's get perspective from our global anchor christiane amanpour in jerusalem. christiane, we know the situation where israel has been threatening for days to roll tanks into gaza. hamas calls it a bluff. do you have a better sense how real it is and when a ground invasion might happen? >> reporter: well, the threat is real. in fact, one israeli official told me today perhaps we'll have to make the sword clearer to energize the diplomacy. on the other hand, they want to make the diplomacy work and are really counting on that success. at this hour, the israeli so-called gang